Eaton N48D28T4921CU Transformer - K13 DOE2016 UL Listed
Part Number: N48D28T4921CU
Quick Summary
Eaton N48D28T4921CU is a K-Factor nonlinear ventilated transformer for three-phase power distribution in industrial applications. This solution helps facilities manage harmonics and thermal loads across critical equipment. Engineers often wrestle with energy waste, limited cooling capacity, and space constraints in packed switchgear rooms. UL Listed certification and DOE2016 Efficient design anchor reliability and long-term operating savings, while the K13 insulation class supports sustained performance under elevated temperatures. By combining robust protection with D-Taps and a 150 kVA rating, this transformer delivers predictable voltage regulation and scalable capacity. In short, it enables safer, more efficient power delivery with cleaner utility interfaces and lower total cost of ownership for industrial sites.
Product Information
Extended Description
N48D28T4921CU Eaton: Eaton NG K-Factor Design, DOE2016,CU, D-Taps, 150 KVA K13 XFMR 3PH 480-208Y/120 150C,480V
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48D28T4921CU
UPC
786689674977
Product Length/Depth
31.5 in
Product Height
51 in
Product Width
34.5 in
Product Weight
1200 lb
Compliances
DOE2016 Efficient
Certifications
UL Listed
Type
K13
Primary voltage
480 V
The K-Factor nonlinear ventilated design reduces harmonic currents and mitigates overheating, which translates to longer transformer life and lower cooling costs in data centers, manufacturing floors, and large facilities. This improves system reliability and reduces unplanned downtime, essential for mission-critical loads. DOE2016 efficient design lowers core and copper loss, delivering measurable energy savings and a smaller carbon footprint on annual utility bills. The N48D28T4921CU supports D-Taps for voltage regulation options and a 150 kVA rating, enabling scalable power distribution without over-sizing equipment. Its three-phase 480 V input and 208Y/120 V output pair with UL Listed compliance to simplify procurement, risk management, and maintenance planning. The compact ventilated form factor optimizes cabinet layouts and reduces required floor-space in crowded electrical rooms. Robust insulation (K13) allows higher operating temperatures, improving thermal margin during peak loads and startup surges. Installation remains straightforward when paired with standard switchgear and pad foundations, minimizing project lead times. Expect lower total cost of ownership through reliability, fewer spare-part needs, and predictable performance across variable load profiles.
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FAQs
This unit weighs approximately 1200 lb and measures roughly 31.5 in deep by 51 in high and 34.5 in wide, requiring a solid floor pad, appropriate clearance for service access, and a crane or lift for placement. Plan for dedicated ventilation, stable power connection to a 480 V three-phase source, and routes to a 208Y/120 V secondary load. Ensure clearances meet local codes and that D-Taps are wired per Eaton guidance.
The N48D28T4921CU is a three-phase transformer rated at 150 kVA with a primary of 480 V and a secondary of 208Y/120 V. It employs a K13 insulation class and features D-Taps for voltage regulation. It is designed to meet DOE2016 efficiency standards and is UL Listed, ensuring safety and reliability in industrial power distributions.
Yes. The K-Factor nonlinear design addresses harmonic currents, reducing peak heating and improving voltage regulation under non-linear loading. Combined with DOE2016 efficiency and K13 insulation, it supports stable operation in environments with harmonic-rich loads, helping lower cooling requirements and extend equipment life in critical facilities like data centers and automated manufacturing lines.
The transformer carries UL Listed certification and complies with DOE2016 energy efficiency standards. These credentials support safety, reliability, and energy performance in industrial installations. While other certifications like CE or IP rating aren’t listed for this model, UL Listed and DOE2016 compliance provide industry-recognized assurance for procurement and regulatory alignment.
Expect favorable ROI from DOE2016 efficiency savings and reliable performance over a 150 kVA load profile, which reduces energy waste and cooling costs. Minimal routine maintenance is required beyond standard periodic inspections and thermal checks. The UL Listed design and robust K13 insulation contribute to longer service life, reducing spare parts and unplanned downtime in factories and data centers.